PDFUI allows you to define a component as a class inherit from Component and register that into a module to provide UI features. Each component has several 'lifecycle methods' that you can override to run code at particular times in the process. More...

Inheritance diagram for Component:

Public Member Functions
	active ()
	Actives the component, and set `isActive` property to true, this method triggers UIExtension.UIConsts.COMPONENT_EVENTS.ACTIVE event. More...

	addDestroyHook (...hooks)
	Add a function to destroyHooks list, which will be called during destroy. More...

	after (component, fragments)
	Inserts this component after the specified component. More...

	attachEventToElement (element, types, listener, options)
	Binds single or more DOM events of the specified type to the specified element. This or these events are automatically removed when the element component is destroyed. More...

	before (component, fragments)
	Insert this component before the specified component. More...

	deactive ()
	Deactives the component, and set `isActive` property to false, this method triggers UIExtension.UIConsts.COMPONENT_EVENTS.DEACTIVE event. More...

	destroy ()
	Destroy the component and remove from its parent. this method triggers UIExtension.UIConsts.COMPONENT_EVENTS.DESTROYED event. More...

	disable ()
	To disable the component, and set `disabled` property to true, this method triggers UIExtension.UIConsts.COMPONENT_EVENTS.DISABLE event. More...

	enable ()
	Enables component, and set `disabled` property to false, this method triggers UIExtension.UIConsts.COMPONENT_EVENTS.ENABLE event. More...

	findClosestComponent (callback)
	Find the first ancestor in the component tree which passed the testing of callback. More...

	getClosestComponentByName (name)
	Find the first ancestor in the component tree which name is equal to the passing value. More...

	getClosestComponentByType (type)
	Find the first ancestor in the component tree which type is equal to the passing value. More...

	getComponentByName (name)
	This method returns an Component object representing the component whose name property matches the specified string. If there are more than one components matched, only the first one is taken. More...

	getPDFUI ()
	Get PDFUI instance, PDFUI instance is passing into a component after constructed. So that an undefined value will be returned in constructoring lifecycle. More...

	getRoot ()
	Get root component of this component tree. More...

	hide ()
	Hide component and set `isVisible` property to false, this method UIExtension.UIConsts.COMPONENT_EVENTS.HIDDEN event. More...

	index ()
	Get the index of this component in parent. More...

	isContainer ()
	Method used to detect whether a component is a container. More...

	localize (localizer=this.localizer)
	Localize message with the value of the data-i18n attribute above the DOM element of component recursively. More...

	nextSiblings ()
	This method returns the component immediately following this component's parent children list, or returns null if this component is the last in that list. More...

	off (eventName, listener)
	Unregister event handler of a geven event type, if no handler function specified, all handler of this given event type will be removed. More...

	on (eventName, listener)
	Registers an event handler to a specific event type on the component. More...

	once (eventName, listener)
	Registers an event handler to a specific event type on the component, but difference from Component#on, this event handler will be triggered only once. More...

	postlink ()
	Lifecycle method: postlink. The postlink method is called after all of the children are parsed. More...

	prelink ()
	Lifecycle method: prelink. The prelink method is called after component is rendered. More...

	previousSiblings ()
	This method returns the component immediately preceding this component's parent children list, or returns null if this component is the first in that list. More...

	querySelector (selector)
	Queries the first result returned from `querySelectorAll`. More...

	querySelectorAll (selectors)
	Returns all components that match the specified selector string. selector syntax: More...

	remove ()
	Remove component from its parent, and triggers UIExtension.UIConsts.COMPONENT_EVENTS.REMOVED event. More...

	removeElement ()
	Remove element from DOM tree.

	show (showParams)
	Shows up component, and set `isVisible` property to true, this method triggers UIExtension.UIConsts.COMPONENT_EVENTS.SHOWN event. More...

	trigger (eventName,...data)
	Calls each of the listeners registered for a given event type. More...

Static Public Member Functions
static	extend (name, def, statics={})

static	getName ()
	This method returns a string identifies as the name of a component type that you can use this string as the tag name in the template. Each component must override this static method so that the template can get this component class. More...

Public Attributes
boolean	canBeDisabled
	Whether or not this component can be disabled. All of the component can be disabled by default unless you manually set the value of this property to true. More...

Controller	constroller
	The controller instanceof of this component. The controller is specified externally and that contains the business logic of this component. More...

boolean	disabled
	Whether or not this component is enabled. Components are enabled by default, and must be enable to recieve user inut or generate events. More...

public< T extends HTMLElement\|DocumentFragment\|Text > T	element
	The root DOM element object of this component. More...

boolean	isActive
	Whether or not this component is active.Active is a complicated state, it can prepresent different interaction states in different component. More...

boolean	isVisible
	Whether or not this component is visible. Expect for layers, Most components are initially visible. More...

string	name
	The name of this component. More...

ContainerComponent	parent
	The parent of this component. More...

Protected Member Functions
	createDOMElement ()
	This method creates a HTMLElement as the root element for this component. More...

	doActive ()
	This method is called after the component is activated. It is used to update the rendering effect after the component is activated. It is usefull to override this method to customize the rendering.

	doDeactive ()
	This method is called after the component is deactivated. It is used to update the rendering effect after the component is deactivated. It is usefull to override this method to customize the rendering.

	doDestroy ()
	This method is called to destroy the component, You should override this method for your custom component to write your customize destroy logic.

	doDisable (reason='')
	This method is called after the component is disabled. It is used to update the rendering effect after the component is disabled. It is usefull to override this method to customize the rendering.

	doEnable (reason='')
	This method is called after the component is enabled. It is used to update the rendering effect after the component is enabled. It is usefull to override this method to customize the rendering.

	doHidden ()
	This method is called to hide the DOM element of this component. It is usefull to override this method to customize the hidding logic.

	doShown ()
	This method is called to show the DOM element of this component. It is usefull to override this method to customize the showing logic.

	mounted ()
	Lifecycle method: mounted. The mounted method is called after the element of component is appended into the DOM tree. More...

	render ()
	Lifecycle method: render. The render method is always been called to create DOM element of the component, it's called after createDOMElement called and before calling prelink. More...

Detailed Description

PDFUI allows you to define a component as a class inherit from Component and register that into a module to provide UI features. Each component has several 'lifecycle methods' that you can override to run code at particular times in the process.

Component

Since: 7.0.0

Member Function Documentation

◆ active()

void Component::active ( )

inline

Actives the component, and set isActive property to true, this method triggers UIExtension.UIConsts.COMPONENT_EVENTS.ACTIVE event.

component.on(UIExtension.UIConsts.COMPONENT_EVENTS.ACTIVE, function(){
})

◆ addDestroyHook()

Component::addDestroyHook ( hooks )

inline

Add a function to destroyHooks list, which will be called during destroy.

Parameters

{...function} hooks

◆ after()

void Component::after	(	component,
		fragments
	)

inline

Inserts this component after the specified component.

Parameters

component	`Component`\|string
fragments	`UIFragmentOptions[]`

◆ attachEventToElement()

Component::attachEventToElement	(	element,
		types,
		listener,
		options
	)

inline

Binds single or more DOM events of the specified type to the specified element. This or these events are automatically removed when the element component is destroyed.

Parameters

element	{object} - The specified element
types	{string} - The type of event. Use comma to separate if there are multiple event types.
listener	{function} - This function will be triggered by the type of Event
options	- An options object specifies characteristics about the event listener, e.g. the EventTarget.addEventListener() method. https://developer.mozilla.org/zh-CN/docs/Web/API/EventTarget/addEventListener

Returns: void

◆ before()

Void Component::before	(	component,
		fragments
	)

inline

Insert this component before the specified component.

Parameters

component	`Component`\|string
fragments	`UIFragmentOptions[]`

◆ createDOMElement()

Component::createDOMElement ( )

inlineprotected

This method creates a HTMLElement as the root element for this component.

Returns: HTMLElement

◆ deactive()

void Component::deactive ( )

inline

Deactives the component, and set isActive property to false, this method triggers UIExtension.UIConsts.COMPONENT_EVENTS.DEACTIVE event.

component.on(UIExtension.UIConsts.COMPONENT_EVENTS.DEACTIVE, function(){
})

◆ destroy()

Void Component::destroy ( )

inline

Destroy the component and remove from its parent. this method triggers UIExtension.UIConsts.COMPONENT_EVENTS.DESTROYED event.

component.on(UIExtension.UIConsts.COMPONENT_EVENTS.DESTROYED, function(){
})

◆ disable()

boolean Component::disable ( )

inline

To disable the component, and set disabled property to true, this method triggers UIExtension.UIConsts.COMPONENT_EVENTS.DISABLE event.

component.on(UIExtension.UIConsts.COMPONENT_EVENTS.DISABLE, function(){
})

Returns: boolean - true if the component is successfully disabled, otherwise no

◆ enable()

void Component::enable ( )

inline

Enables component, and set disabled property to false, this method triggers UIExtension.UIConsts.COMPONENT_EVENTS.ENABLE event.

component.on(UIExtension.UIConsts.COMPONENT_EVENTS.ENABLE, function(){
})

Returns: boolean - true if the component is successfully enabled, otherwise no!

◆ extend()

static Component::extend	(	name,
		def,
		statics = `{}`
	)

inlinestatic

A convenient method for ES5 to inherit components

Parameters

name	string
def	component members
statics	static members

◆ findClosestComponent()

Component Component::findClosestComponent ( callback )

inline

Find the first ancestor in the component tree which passed the testing of callback.

Parameters

callback function - This is a predicate used to find eligible ancestors in the component tree. It returns true to indicate that a match has been found.

Returns: Component|undefined - Returns the first matching ancestor component, or undefined if no match is found.

◆ getClosestComponentByName()

Component::getClosestComponentByName ( name )

inline

Find the first ancestor in the component tree which name is equal to the passing value.

Parameters

name	string - component name

Returns: Component|undefined - Returns the first matching ancestor component, or undefined if no match is found.

◆ getClosestComponentByType()

Component::getClosestComponentByType ( type )

inline

Find the first ancestor in the component tree which type is equal to the passing value.

Parameters

type	string - component type: Component.getName

Returns: Component|undefined - Returns the first matching ancestor component, or undefined if no match is found.

◆ getComponentByName()

Component Component::getComponentByName ( name )

inline

This method returns an Component object representing the component whose name property matches the specified string. If there are more than one components matched, only the first one is taken.

Returns: Component

◆ getName()

static Component::getName ( )

inlinestatic

This method returns a string identifies as the name of a component type that you can use this string as the tag name in the template. Each component must override this static method so that the template can get this component class.

Returns: string

◆ getPDFUI()

Component::getPDFUI ( )

inline

Get PDFUI instance, PDFUI instance is passing into a component after constructed. So that an undefined value will be returned in constructoring lifecycle.

Returns: PDFUI

◆ getRoot()

Component::getRoot ( )

inline

Get root component of this component tree.

Returns: Component

◆ hide()

void Component::hide ( )

inline

Hide component and set isVisible property to false, this method UIExtension.UIConsts.COMPONENT_EVENTS.HIDDEN event.

component.on(UIExtension.UIConsts.COMPONENT_EVENTS.HIDDEN, function(){
})

◆ index()

number Component::index ( )

inline

Get the index of this component in parent.

Returns: number

◆ isContainer()

Component::isContainer ( )

inline

Method used to detect whether a component is a container.

See also: ContainerComponent

Returns: boolean - true if it is a container type component, false otherwise

◆ localize()

void Component::localize ( localizer = this.localizer )

inline

Localize message with the value of the data-i18n attribute above the DOM element of component recursively.

Returns: void

◆ mounted()

Component::mounted ( )

inlineprotected

Lifecycle method: mounted. The mounted method is called after the element of component is appended into the DOM tree.

Returns: void

◆ nextSiblings()

Component Component::nextSiblings ( )

inline

This method returns the component immediately following this component's parent children list, or returns null if this component is the last in that list.

Returns: Component

◆ off()

Component::off	(	eventName,
		listener
	)

inline

Unregister event handler of a geven event type, if no handler function specified, all handler of this given event type will be removed.

Parameters

eventName
[listener]	function

◆ on()

Component::on	(	eventName,
		listener
	)

inline

Registers an event handler to a specific event type on the component.

Parameters

eventName	string
listener	function

◆ once()

Component::once	(	eventName,
		listener
	)

inline

Registers an event handler to a specific event type on the component, but difference from Component#on, this event handler will be triggered only once.

Parameters

eventName	string
listener	function

◆ postlink()

void Component::postlink ( )

inline

Lifecycle method: postlink. The postlink method is called after all of the children are parsed.

Returns: void

◆ prelink()

void Component::prelink ( )

inline

Lifecycle method: prelink. The prelink method is called after component is rendered.

Returns: void

◆ previousSiblings()

Component Component::previousSiblings ( )

inline

This method returns the component immediately preceding this component's parent children list, or returns null if this component is the first in that list.

Returns: Component

◆ querySelector()

Component::querySelector ( selector )

inline

Queries the first result returned from querySelectorAll.

Parameters

selector string - The syntax is the same as the parameter of querySelectorAll

Returns: Component|undefined

See also: querySelectorAll

◆ querySelectorAll()

Component::querySelectorAll ( selectors )

inline

Returns all components that match the specified selector string. selector syntax:

component name selector: "hand-tool", "home-tab"
component type selector: "@sidebar", "@xbutton"
select all: "*"
select descendants: "@sidebar @sidebar-panel", "home-tab @group"
select children: "@sidebar-panel>@xbutton", "@sidebar-panel>*"
select attribute: "@sidebar-panel[name='']", "[name^=fv--addon]", "[name$=style]", "[name*=fv]"
method selector: "::eq(0)", "::childAt(0)", "::parent()", "::first()", "::last()", "::allAfter()","::allBefore()", "::activated()", "::deactivated()", "::visible()", "::hidden()", "::disabled()", "::enabled()"
Parameters

selector string

Returns
Component[]

◆ remove()

void Component::remove ( )

inline

Remove component from its parent, and triggers UIExtension.UIConsts.COMPONENT_EVENTS.REMOVED event.

component.on(UIExtension.UIConsts.COMPONENT_EVENTS.REMOVED, function(parentComponent){
})

◆ render()

Component::render ( )

inlineprotected

Lifecycle method: render. The render method is always been called to create DOM element of the component, it's called after createDOMElement called and before calling prelink.

Returns: void

◆ show()

void Component::show ( showParams )

inline

Shows up component, and set isVisible property to true, this method triggers UIExtension.UIConsts.COMPONENT_EVENTS.SHOWN event.

component.on(UIExtension.UIConsts.COMPONENT_EVENTS.SHOWN, function(){
})

◆ trigger()

Component::trigger	(	eventName,
		data
	)

inline

Calls each of the listeners registered for a given event type.

Parameters

eventName	string
data	...any

Member Data Documentation

◆ canBeDisabled

boolean Component::canBeDisabled

Whether or not this component can be disabled. All of the component can be disabled by default unless you manually set the value of this property to true.

Since: 7.0.0

◆ constroller

Controller Component::constroller

The controller instanceof of this component. The controller is specified externally and that contains the business logic of this component.

Since: 7.0.0

◆ disabled

boolean Component::disabled

Whether or not this component is enabled. Components are enabled by default, and must be enable to recieve user inut or generate events.

Since: 7.0.0

◆ element

public<T extends HTMLElement|DocumentFragment|Text> T Component::element

The root DOM element object of this component.

Since: 7.0.0

◆ isActive

boolean Component::isActive

Whether or not this component is active.Active is a complicated state, it can prepresent different interaction states in different component.

Since: 7.0.0

◆ isVisible

boolean Component::isVisible

Whether or not this component is visible. Expect for layers, Most components are initially visible.

Since: 7.0.0

◆ name

string Component::name

The name of this component.

See also: Component.getComponentByName(name);

Since: 7.0.0

◆ parent

ContainerComponent Component::parent

The parent of this component.

Since: 7.0.0

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Detailed Description

Member Function Documentation

◆ active()

◆ addDestroyHook()

◆ after()

◆ attachEventToElement()

◆ before()

◆ createDOMElement()

◆ deactive()

◆ destroy()

◆ disable()

◆ enable()

◆ extend()

◆ findClosestComponent()

◆ getClosestComponentByName()

◆ getClosestComponentByType()

◆ getComponentByName()

◆ getName()

◆ getPDFUI()

◆ getRoot()

◆ hide()

◆ index()

◆ isContainer()

◆ localize()

◆ mounted()

◆ nextSiblings()

◆ off()

◆ on()

◆ once()

◆ postlink()

◆ prelink()

◆ previousSiblings()

◆ querySelector()

◆ querySelectorAll()

◆ remove()

◆ render()

◆ show()

◆ trigger()

Member Data Documentation

◆ canBeDisabled

◆ constroller

◆ disabled

◆ element

◆ isActive

◆ isVisible

◆ name

◆ parent